#include <LwIP.h>
#include <STM32Ethernet.h>

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192, 168, 1, 69);

void printMacAddress(byte* macBuffer) {
  Serial.print("The MAC address is: ");
  for (byte octet = 0; octet < 6; octet++) {
    Serial.printf("%02X", macBuffer[octet]);
    if (octet < 5) {
      Serial.print('-');
    } else {
      Serial.println();
    }
  }
}

void setup() {
  Serial.begin(9600);
  while (!Serial) {};
  byte macBuffer[6];  // create a buffer to hold the MAC address
  byte newMac[] = { 0x00, 0xAA, 0xBB, 0xCC, 0xDE, 0x02 };

  Ethernet.MACAddress(macBuffer);  // fill the buffer
  printMacAddress(macBuffer);      // print default MAC address
  // Selectdesired config for the test
  // Ethernet.setMACAddress(newMac);  // change the MAC address
  // Ethernet.begin(mac, ip);
  // Ethernet.begin(ip);
  Ethernet.MACAddress(macBuffer);  // fill the buffer
  printMacAddress(macBuffer);
  Ethernet.setMACAddress(newMac);  // change the MAC address
  Ethernet.MACAddress(macBuffer);  // fill the buffer
  printMacAddress(macBuffer);
}

void loop() {
}